If you failed to build the connection between your Android and computer, please try these steps:1. Check the network connection of your device2. Unlock or awake your device3. Initiate AirDroid on your device

And reconnect.

If it fails again and you are sure the device and the computer are connected to the same network, you may try AirDroid Web Lite to connect by visit the IP address shown in AirDroid on your device.

Note:1. If you have connected your device to 2G/3G/4G network, the network will be disconnected when you receive an inbond-call. Thus the connection between your device and PC/laptop will be interrupted. You may connect your device to WiFi network and try again.2. If you're using AirDroid Win/Mac, the connection will be interrupted when the computer goes sleep. AirDroid will restore the connection automatically when the computer connects to network again.